The world is full of information to be found--however, not all of it is valid, useful, or accurate. Evaluating sources of information that you are considering using in your writing or research (or in your everyday life!) is an important step in any activity.

The quantity of information available is so so HUGE that we cannot know everything about a subject. For example, it's estimated that anyone attempting to research what's known about depression would have to read over 100,000 studies (yes, it is true!) on the subject. And there's the problem of trying to decide which studies have produced reliable results.

Similarly, for information on other topics, not only is there a huge quantity available but a very uneven level of quality. You don't want to rely on the news in the headlines of sensational tabloids near supermarket checkout counters, and it's just as hard to know how much to accept of what's in all the books, magazines, pamphlets, newspapers, journals, brochures, web sites, and various media reports that are available. People want to convince you to buy their products, agree with their opinions, rely on their data, vote for their candidate, consider their perspective, or accept them as experts. In short, you have to sift and make decisions all the time, and you want to make responsible choices that you won't regret.

Evaluating sources is an important skill. It's been called an art as well as work--much of which is detective work. You have to decide where to look, what clues to search for, and what to accept. You may be overwhelmed with too much information or too little. The temptation is to accept whatever you find. But don't be tempted. Learning how to evaluate effectively is a skill you need both for your school work and life.

Evaluating Print vs. Internet Sources
Evaluating sources of information is an important step in any research activity. This section provides information on evaluating bibliographic citations, aspects of evaluation, reading evaluation, print vs. Internet sources, and evaluating internet sources.

With the advent of the World Wide Web, we are seeing a massive influx of digital texts and sources. Understanding the difference between what you can find on the web and what you can find in more traditional print sources is key.

Some sources such as journal or newspaper articles can be found in both print and digital format. However, much of what is found on the Internet does not have a print equivalent, and hence, has low or no quality standards for publication. Understanding the difference between the types of resources available will help you evaluate what you find.

Helpful Hints: The Following Information Will Help You Along!
Publication Process
Print Sources: Traditional print sources go through an extensive publication process that includes editing and article review. The process has fact-checkers, multiple reviewers, and editors to ensure quality of publication.

Internet Sources: Anyone with a computer and access to the Internet can publish a website or electronic document. Most web documents do not have editors, fact-checkers, or other types of reviewers.

Authorship and Affiliations
Print Sources: Print sources clearly indicate who the author is, what organization(s) he or she is affiliated with, and when his or her work was published.
Internet Sources: Authorship and affiliations are difficult to determine on the Internet. Some sites may have author and sponsorship listed, but many do not.

Sources and Quotations
Print Sources: In most traditional publications, external sources of information and direct quotations are clearly marked and identified.

Internet Sources: Sources the author used or referred to in the text may not be clearly indicated in an Internet source.

Bias and Special Interests
Print Sources: While bias certainly exists in traditional publications, printing is more expensive and difficult to accomplish. Most major publishers are out to make a profit and will either not cater to special interest groups or will clearly indicate when they are catering to special interest groups.
Internet Sources: The purpose of the online text may be misleading. A website that appears to be factual may actually be persuasive and/or deceptive.

Author Qualifications
Print Sources: Qualifications of an author are almost always necessary for print sources. Only qualified authors are likely to have their manuscripts accepted for publication.
Internet Sources: Even if the author and purpose of a website can be determined, the qualifications of the author are not always given.

Publication Information
Print Sources: Publication information such as date of publication, publisher, author, and editor are always clearly listed in print publications.

Internet Sources: Dates of publication and timeliness of information are questionable on the internet. Dates listed on websites could be the date posted, date updated, or a date may not be listed at all.

http://owl.english.purdue.edu/owl/resource/553/04/

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